README.md
In tavoundjian/jerzpals: Jerzy-inspired color palettes

jerzpals

Color palettes for R and ggplot2 inspired by my stylish friend and colleague, Jerzy Eisenberg-Guyot. Jerzy is many things to many people, but he is a paragon of style to just about everyone. This package is a way to bring Jerzy's style to the masses.

This package was a convenient excuse to learn how to build packages in R and host them on Github (and eventually CRAN). And also an opportunity to work with my wife, Tanya Basmadjian Avoundjian, who is a very talented graphic designer (who is always supplying me with awesome color palettes for visualizations!).

To install, run the following in R:

devtools::install_github("tavoundjian/jerzpals")

The functions scale_fill_jerzeg and scale_color_jerzeg can be used directly with ggplot2.

alpha: pass through parameter to jerz. Numeric value between 0 and 1 that controls opacity of color map (1 = opaque).
begin: numeric value between 0 and 1. Indicates the first color in the palette/map.
end: numeric value between 0 and 1. Indicates the last color in the palette/map.
direction: sets the order of the colors in the scale. If 1 (default), colors are output by jerz_pal. If -1, the order of colors is reversed.
discrete: generate a discrete palette? (default: FALSE - generate continuous palette)
option: character string indicating the palette option to use. (see "Palettes" below for available palette options)

library(jerzpals)

library(ggplot2)
# library(jerzpals)

data(iris)

# Discrete scale
ggplot(data = iris, aes(x = Species, y = Petal.Length)) +
geom_bar(aes(fill = Species), stat = "identity") +
scale_fill_jerzeg(option = "jerzshoe2", discrete = T) +
theme_bw()

# Continuous scale
ggplot(data = iris, aes(x = Petal.Width, y = Petal.Length)) +
geom_point(aes(color = Sepal.Width)) +
scale_color_jerzeg(option = "H", begin = 0, end = 0.5) + # use begin and end to set range of colors used in the palette
theme_bw()

jerzshoe1